Intake-manifold locking valve



Dec, 16, 1924.

W. D. HAM

INTAKE MANIFOLD LOCKING VALVE Filed Nov. 10 1925 Patented l ec. 16, 1924.

ETED 5T PTNT OFFECE.

WESLEY DAMON I-IAIVI, OE MANCHESTER, NEW HAMPSHIRE, ASSIGNOR F ONE-HALF 'IO FRANK P. HAM, OF MANCHESTER, HAMPSHIRE.

INTAKE-MANIFOLD LOCKING VALVE.

Application filed November 10, 1923.

T 0 all whom it may concern:

Be it known that I, VVEsLnY DAMON HAM, a citizen of the United States, residing at Manchester, in the county of Hillsborough and State of New Hampshire, have invented certain new and useful Improvements in Intake-Manifold Locking Valves; and I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in valves and the present disclosure is directed to one which is designed primarily for use in an intake manifold to prevent the passage of fuel therethrough from the carburetor, thus preventing anyone except an authorized person from operating the motor.

The valve preferably includes an insert to be introduced between the intake manifold and the outlet neck of the carburetor, capable of being secured in place by a pair of bolts, and one object of the invention is to provide unique means, whereby at least one of these bolts cannot be removed when the valve is locked in shut position, thereby preventing anyone from entirely removing the valve and connecting the carbureter directly with the intake manifold.

A further object of the invention is to provide unique means for operating the valve, necessitating (in the present showing) the release of a lock in order that the valve may be opened.

lVith the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, the description being supplemented by the accompanying drawing.

Figure 1 is a side elevation showing the application of one of the improved valves between a carburetor and an intake manifold.

Figure 2 is a top plan view.

Figure 3 is a horizontal sectional view on line 3-3 of Fig. 1.

Figure 4 is a vertical sectional view on line 4-4: of Fig. 3.

Figure 5 is a vertical transverse section as indicated by line 5-5 of Fig. 3.

Figure 6 is a perspective view of the valve operating plunger.

Figure 7 is a similar view of the valve.

In the drawing above briefly described,

Serial No. 674,020.

which illustrates the preferred form of construction, the numeral 1 designates a fiat body adapted to be insterted between a can bureter C and an intake manifold I, suitable gaskets G being employed, as shown in 1, 4 and The body 1 has a passage 2 formed therethrough for communication with the carburetor outlet and the intake manifold, and a pair of bolt holes 3 and 4 are formed through said body to receive a pair of attaching bolts 5 and 6 which pass through the usual flanges of the intake manifold and the carburetor. I have shown a peripheral groove 7 in the bolt 6, for a purpose to appear hereinafter.

A butterfly valve 8 has been shown for controlling the passage 2, said valve being carried by a suitable rock shaft 9, one of whose ends extends into a bore 10 formed in the body 1, co-axially with the valve shaft. A valve-operating plunger 11 is slidably mounted in this bore and in the present showing, has its inner end formed with a slot 12 opening into a recess 13 within said plunger. The shaft 9 has been shown provided with a flattened and twisted end 14 which passes through the slot 12 into the recess 13, so that movement of the plunger 11 in one direction, will effect turning of the shaft 9 to close the valve 8, while movement of said plunger in the opposite direction will open said valve.

To hold the plunger 11 in valve-closing posit-ion, I have illustrated a key-controlled detent 15 carried by a barrel 16 inserted in the body 1, said detent being c-o-operable with a recess 17 in one side of the plunger. When the plunger is forced to valve-closing position, the detent snaps into the recess 17 and locks said plunger, so as to lock the valve closed. Simultaneously with this operation, a lug 18 on the plunger 11, moves into the groove 7 of the bolt 6 and thus it will be seen that this bolt cannot be removed. Normally, the lug 18 is positioned in a groove 19 formed in the wall of the bore 10,

the outer end of this groove being closed by a suitable plug 20, after the plunger is inserted, so that said plug may act also as a stop to co-act with the lug 18 and limit the outward movement of said plunger.

In order that the device may be locked without the necessity of raising the hood of an automobile with which it is used, I prefer to provide an extension rod 21 leading, from the plunger 11 to the dash of the machine, or other suitable point. To look the device, it it simply necessary to move the rod 21 in the proper direction, causing the plunger 11 to close the valve 8 and causing the detent 15 to lock said plunger in operative position, so as to lock both the valve and the bolt 6.

The improved valve structure, while being intended primarily for use in connection with a fuel passage from a carbureter to an engine, is not restricted to such use, as will be readily understood. l urthermore, within the scope of the invention as claimed, nu.- merous modifications of construction may be carried out. Y

I claim:

1. A valve comprising a body having a passage for fluid extending therethrough, a valve disposed in said passage and mounted for rotation upon an aXis transverse to the axis thereof, said body being provided at one side of said passage with a bore arranged co-aXially with said valve, a plunger slidably mounted in said bore to shift longitudinally of the axis of said valve, the inner end portion of said plunger being hollow and having its end wall provided with an elongated slot, and the adjacent end of the shaft of said valve being flattened and twisted and extending through said slot into the hollow end portion of said plunger, whereby a sliding movement of said plunger will turn said shaft and said valve.

2. A valve comprising a body having a passage for fluid extending therethrough, a bore at one side ofsaid passage and a bolt hole extending at right angles to said bore and communicating with one side'of the same, a bolt extending through saidbolt hole for securing said body to another mem her, said bolt being provided with a peripheral groove opening into said bore, a valve disposed in said passage, an actuator for .said valve slidably mounted in said bore,

a lug carried by said actuator and adapted to enter the groove in said bolt and prevent the latter from being withdrawn from said bolt hole when said actuator is in the position wherein said valve is closed, and means mounted in said body for locking said actuator in the position wherein said valve is closed.

In testimony whereof I have hereunto affixed my signature.

WESLEY DAMON HAM. 

